Air movement and its consequences around a multiple shelterbelt system under advective conditions in semi-arid northern Nigeria.

L.O.Z. Onyewotu, C.J. Stigter, E.O. Oladipo, J.J. Owonubi

Research output: Contribution to journalArticleAcademicpeer-review

11 Citations (Scopus)

Abstract

Horizontal wind speed patterns above a scarce millet row crop on inhomogeneous sandy soil revealed insufficient protection from hot winds by multiple shelterbelts in semi-arid Northern Nigeria. This appeared mainly due to too high distances between the belts. Marked yield drops occurred with distance between the belts, in what McNaughton defined (under mechanical damage and microclimate disturbance from strong winds) as the unprotected wake zone. These may, in the case of hot winds, mainly be attributed to combined negative effects on soil moisture and crop physiology of the combination of turbulence, worsened by the shelterbelts, and advected heat. Other parameters confirm the picture of the wake zone and the quiet zone, the latter also being present windward of the belts in a reduced form. The results have serious consequences for the design rules of multiple shelterbelts and alternatives under African semi-arid conditions.
Original languageEnglish
Pages (from-to)255-262
JournalTheoretical and Applied Climatology
Volume79
Issue number3-4
DOIs
Publication statusPublished - 2004

Fingerprint

shelterbelt
crop
millet
microclimate
sandy soil
physiology
soil moisture
wind velocity
turbulence
disturbance
damage
air movement

Keywords

  • sand
  • windbreaks
  • millet
  • scheme
  • crop

Cite this

Onyewotu, L.O.Z. ; Stigter, C.J. ; Oladipo, E.O. ; Owonubi, J.J. / Air movement and its consequences around a multiple shelterbelt system under advective conditions in semi-arid northern Nigeria. In: Theoretical and Applied Climatology. 2004 ; Vol. 79, No. 3-4. pp. 255-262.
@article{dd1061130fae4e2a8b3fe3aaaece496b,
title = "Air movement and its consequences around a multiple shelterbelt system under advective conditions in semi-arid northern Nigeria.",
abstract = "Horizontal wind speed patterns above a scarce millet row crop on inhomogeneous sandy soil revealed insufficient protection from hot winds by multiple shelterbelts in semi-arid Northern Nigeria. This appeared mainly due to too high distances between the belts. Marked yield drops occurred with distance between the belts, in what McNaughton defined (under mechanical damage and microclimate disturbance from strong winds) as the unprotected wake zone. These may, in the case of hot winds, mainly be attributed to combined negative effects on soil moisture and crop physiology of the combination of turbulence, worsened by the shelterbelts, and advected heat. Other parameters confirm the picture of the wake zone and the quiet zone, the latter also being present windward of the belts in a reduced form. The results have serious consequences for the design rules of multiple shelterbelts and alternatives under African semi-arid conditions.",
keywords = "sand, windbreaks, millet, scheme, crop",
author = "L.O.Z. Onyewotu and C.J. Stigter and E.O. Oladipo and J.J. Owonubi",
year = "2004",
doi = "10.1007/s00704-004-0068-1",
language = "English",
volume = "79",
pages = "255--262",
journal = "Theoretical and Applied Climatology",
issn = "0177-798X",
publisher = "Springer Verlag",
number = "3-4",

}

Air movement and its consequences around a multiple shelterbelt system under advective conditions in semi-arid northern Nigeria. / Onyewotu, L.O.Z.; Stigter, C.J.; Oladipo, E.O.; Owonubi, J.J.

In: Theoretical and Applied Climatology, Vol. 79, No. 3-4, 2004, p. 255-262.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Air movement and its consequences around a multiple shelterbelt system under advective conditions in semi-arid northern Nigeria.

AU - Onyewotu, L.O.Z.

AU - Stigter, C.J.

AU - Oladipo, E.O.

AU - Owonubi, J.J.

PY - 2004

Y1 - 2004

N2 - Horizontal wind speed patterns above a scarce millet row crop on inhomogeneous sandy soil revealed insufficient protection from hot winds by multiple shelterbelts in semi-arid Northern Nigeria. This appeared mainly due to too high distances between the belts. Marked yield drops occurred with distance between the belts, in what McNaughton defined (under mechanical damage and microclimate disturbance from strong winds) as the unprotected wake zone. These may, in the case of hot winds, mainly be attributed to combined negative effects on soil moisture and crop physiology of the combination of turbulence, worsened by the shelterbelts, and advected heat. Other parameters confirm the picture of the wake zone and the quiet zone, the latter also being present windward of the belts in a reduced form. The results have serious consequences for the design rules of multiple shelterbelts and alternatives under African semi-arid conditions.

AB - Horizontal wind speed patterns above a scarce millet row crop on inhomogeneous sandy soil revealed insufficient protection from hot winds by multiple shelterbelts in semi-arid Northern Nigeria. This appeared mainly due to too high distances between the belts. Marked yield drops occurred with distance between the belts, in what McNaughton defined (under mechanical damage and microclimate disturbance from strong winds) as the unprotected wake zone. These may, in the case of hot winds, mainly be attributed to combined negative effects on soil moisture and crop physiology of the combination of turbulence, worsened by the shelterbelts, and advected heat. Other parameters confirm the picture of the wake zone and the quiet zone, the latter also being present windward of the belts in a reduced form. The results have serious consequences for the design rules of multiple shelterbelts and alternatives under African semi-arid conditions.

KW - sand

KW - windbreaks

KW - millet

KW - scheme

KW - crop

U2 - 10.1007/s00704-004-0068-1

DO - 10.1007/s00704-004-0068-1

M3 - Article

VL - 79

SP - 255

EP - 262

JO - Theoretical and Applied Climatology

JF - Theoretical and Applied Climatology

SN - 0177-798X

IS - 3-4

ER -